PHP 8.4 Compatibility

Drops support for PHP < 7.1

Because PHP 8.4 deprecates implicit nullables, keeping the codes existing type safety required explicit nullability. This was introduced in PHP 7.1.

To support PHP 8.4 without sacrificing type safety, I've sadly had to drop support for PHP 5.x and 7.0.

What's Changed

• Bump actions/checkout from 3 to 4 by @dependabot in #17
• Update PHP to 8.3 by @donatj in #18
• Test in PHP 8.4 by @donatj in #19
• Update minimum to PHP 7.1 by @donatj in #21
• Prevent warning in PHP 8.4+ by @Gizmo091 in #20

New Contributors

• @Gizmo091 made their first contribution in #20

Full Changelog: v1.5.0...v1.6.0